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  • Title: Pulse-spray thrombolysis in acute myocardial infarction caused by thrombotic occlusion of an ectatic coronary artery.
    Author: Tanabe Y, Itoh E, Nakagawa I, Suzuki K.
    Journal: Circ J; 2002 Feb; 66(2):207-10. PubMed ID: 11999650.
    Abstract:
    Pulse-spray thrombolysis was performed in 2 patients with acute myocardial infarction (AMI) caused by thrombotic occlusion of coronary artery ectasia. Case 1, a 66-year-old woman with an inferior AMI underwent emergency coronary arteriography, which revealed occlusion of an ectatic right coronary artery. Primary balloon angioplasty failed to reestablish distal flow. Urokinase was administered through the pulse-spray infusion catheter (UltraFuse) and intravenous recombinant tissue plasminogen activator was also administered. Angiographic disappearance of the thrombus was observed within 30 min of starting the infusion, and there was only mild irregularity in the ectatic coronary artery. Case 2, a 45-year-old man with an inferior AMI underwent emergency coronary arteriography, which revealed occlusion of an ectatic right coronary artery. TIMI-3 flow was soon obtained after administration of 480,000 units of urokinase through the pulse-spray infusion catheter. There was diffuse right coronary ectasia without angiographic evidence of coronary stenosis. Coronary ectasia sometimes develops into AMI without the coexistence of coronary stenosis. Because a massive thrombus plays a major role, pulse-spray thrombolysis is a possible treatment in coronary artery ectasia with thrombotic occlusion.
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